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The AI paralegal for
immigration attorneys.

Lex fills the forms, reviews every answer, chases documents and assembles packets overnight. You review the exceptions and sign off.

Amira HaddadForm N-400ShareAsk Lex
Page 4 of a filled USCIS Form N-400, Part 5: Information About Your Marital History

Not a chatbot. A paralegal that does the work.

Delegate work the way you'd hand it to a person — in plain language — and Lex plans it, does it, and shows you exactly what it touched and why.

Works on its own

Lex fills forms, reviews answers, requests missing documents and assembles packets — overnight, in parallel, across every open case. You wake up to work already done.

Knows when to ask

When something doesn't add up — a date conflict, a judgment call, a decision only an attorney should make — Lex pauses and brings it to you instead of guessing.

Shows its work

Every field Lex fills traces back to the document or answer it came from. Nothing is a black box, and nothing leaves the firm without your sign-off.

Every call answered. Lex picks up your firm’s phone, interviews the caller in a natural conversation, and saves the lead and the full transcript.

On a call(201) 555-01480:31
Lex

Thanks for calling Reyes Immigration, this is Lex. How can I help?

Caller

My brother has a court date in Newark and we don’t have a lawyer.

Lex

I’m glad you called. When is the hearing?

Caller

March 3rd. He got the letter last week.

New lead · from a callMateo OrtizRemoval defense · sister Daniela called
Hearing Mar 3 · urgentTranscript attached

Win the consult. Prospects pick a real opening, answer your screening questions and pay up front — then land in your leads pipeline.

LeadsPipelineThis week
NameCase typeStageConsult
SMSofia MarínMarriage green cardConsult bookedThu 10:00 AM
OKOmar KhalilAsylum + EADContacted—
LNLena NovakO-1 visaNew—
TBTunde BelloNaturalizationConsult bookedMon 2:30 PM
PRPriya RamanEB-1ARetained—
New bookingSofia MarínImmigration consultation · 30 min
Thu, Oct 16 · 10:00 AMGoogle Meet

Intake in their language. A guided questionnaire asks one plain question at a time, in Spanish, Turkish or Arabic. You read every answer in English.

Reyes ImmigrationEspañol
Pregunta 4 de 12

¿Cuándo entró por última vez a los Estados Unidos?

2 de junio de 2018
Siguiente
Tomás Herrera · AnswersEnglish
Date of birthMarch 14, 1991
Country of birthMexico
Spouse’s nameEmily Herrera
Last entry to the U.S.June 2, 2018Translated from Spanish

Documents become answers. Lex reads each passport and certificate, fills the profile and the form, and traces every value back to its source.

PASSPORTP · MEX
P<MEXHERRERA<<TOMAS<<<<<<<<<<
passport-tomas.jpg
Form I-485Part 1 · Information about you
Family nameHERRERApassport
Given nameTOMÁSpassport
Date of birth03/14/1991passport
Country of birthMEXICOpassport
Passport numberN04829137passport

Filing-ready by morning. Lex assembles the forms, exhibits and cover letter into one ordered packet, waiting for your sign-off.

I-130 packet · Yusuf Demirv1
  1. 01Cover letter
  2. 02Form I-130
  3. 03Form I-130A
  4. 04Marriage certificate
  5. 05Joint lease and bank statements
  6. 06Photos together (6)
  7. 07Birth certificate · certified translation
7 sections · 14 exhibits · 86 pagesReady for your sign-off

Paid without chasing. Invoices go out in a click, clients pay by card or bank, and reminders follow up every three days until it’s settled.

Reyes ImmigrationINV-1042
Form I-485 preparation$1,200.00
USCIS filing fees$1,440.00
Total due$2,640.00
Paid
  1. Invoice sentOct 1
  2. Reminder sentOct 4
  3. Reminder sentOct 7
  4. Paid by bank transfer (ACH)Oct 8

The case is already worked when you open it.

Lexfill reads the documents and the answers the way a careful associate would — in the background, around the clock — and hands you the parts that need judgment.

Upload a document, watch the case file build itself.

Lexfill identifies each passport or green card, names it, reads the details, and fills the client's profile. Every field traces back to its source, and nothing saves until you confirm it.

green-card.jpg
Client profile
NameTomás Herrera
BornMar 14, 1991
CountryMexico
A-No.208-451-9

A second pair of eyes on every answer.

Before you open a questionnaire, Lexfill has read it end to end and marked the answers that don't add up — in plain English, right where the answer lives. Clean answers stay quiet, so flags mean something.

Immigration historyAI reviewed
Date of marriageSept 19, 2023
Date of last entryJune 2, 2015
This is three years before the I-94 arrival date on file (2018). Please confirm with the client.
Prior refusalsNone reported
Early access

Lex answers the phone, too.

Connect your firm's number and Lex picks up when you can't. It talks with callers naturally, captures their case, and saves the lead and the full transcript to Lexfill before you call back.

  • A real conversation, not a phone menu
  • Leads synced with the right fields, urgent dates flagged
  • Every call kept as a full transcript
See the AI receptionist

Never miss a hearing the court moves.

Court Watch checks every watched client’s immigration court (EOIR) case daily by A-number. When a hearing is scheduled, moved, or pulled earlier, your team gets the old and new date that day — on the firm calendar, with the follow-up task already filed.

  • Two fields to start: A-number and nationality
  • Alerts the day a hearing moves — earlier dates first
  • Decisions and appeal deadlines on the case Timeline
New · Clio import

On Clio? Court Watch fills itself.

Connect Clio once and confirm where your firm keeps A-numbers and nationality. Lexfill starts watching every client with an A-number in Clio, then checks Clio again every night, so a new client is watched by morning without anyone retyping it.

  • Lexfill finds your A-number and country fields; you confirm once
  • New clients are watched overnight; closed matters stop, history kept
  • Read-only: Lexfill never changes anything in Clio
Now on the App Store

Your practice, on your iPhone.

Lexfill for iPhone is built for the hours between court and the office. Review what clients upload, answer them the moment they write, and ask Lex about any case, with the same access you have on the web, behind Face ID.

  • Approve a client's upload with a swipe, or ask for a new copy
  • Every case sorted by what needs you, searchable by receipt number
  • Reply the moment a client writes, with their files in the thread

One workspace for the whole practice.

The small, repetitive things that decide whether a filing goes out clean and on time — and the client relationship around them — live alongside the case, not across your inbox and five other tools.

Answers land form-ready, proofed against the real form.

Intake answers map straight to the I-130, I-485, N-400 and more — every field inline-editable, nothing retyped. Switch to a page-by-page proof of the filled USCIS form, side by side with the source answers.

  • I-129
  • I-130
  • I-140
  • I-485
  • I-589
  • I-765
  • I-9
  • N-400
Form I-485Part 1 · Information about you
1.a Family nameHERRERA
1.b Given nameTOMÁS
3. Date of birth03/14/19914. A-NumberA-208-451-9
5. Country of birthMEXICO
Sourcegreen-card.jpgA-208-451-9Matches intake answer

Every document verified before it hits the filing.

Approve or reject each upload with a reason. The client is notified instantly and re-uploads in one tap — so a blurry scan gets fixed now, not in an RFE months later.

passport-photo.jpg Approved
Verified by D. Reyes · Apr 3
i-94-record.pdf Needs re-upload
The scan is cut off at the bottom — please re-upload the full page.
ApproveReject
Client re-uploaded · 1 tap

Every follow-up on the board, not in your head.

One shared task board for the firm, every to-do tied to its client. When a review flag needs a human, it opens the task itself.

Task created from a review flag
To do3
Confirm date of last entry with client
DRTomás HerreraJul 21
Request updated pay stub
MATomás HerreraJul 28
In progress2
Draft I-485 cover letter
DRTomás HerreraJul 24
Translate birth certificate
MAY. Demir

Never miss a filing date.

One calendar across the whole firm shows every case deadline, task, and invoice due date side by side.

May 2026
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Filing deadlineTask dueInvoice due

Clients answer in their language; you work in yours.

The intake runs in English, Spanish, Turkish, or Arabic — with full right-to-left support. Every answer arrives in your console in English.

EnglishEspañolTürkçeالعربية
يراه العميل · العربية
متى كانت آخر مرة دخلت فيها إلى الولايات المتحدة؟
You see
Your console · English
When did you last enter the United States?

No more case updates lost in email.

A private thread per client, with attachments. Unread messages nudge by email, so nothing stalls waiting on a reply.

Hi Daniela — I found my old pay stub. I've attached it here.
pay-stub-march.pdf240 KB
Perfect — that was the last thing we needed to file. Thank you, Tomás.
New message from TomásEmailed to you · 2 minutes ago

Consultations that book themselves.

Your own booking page checks Google Calendar, collects the consultation fee up front, and drops the booking into your leads pipeline.

Added to Google Calendar
Reyes ImmigrationBook online
Immigration consultation
30 minGoogle Meet$150
Tuesday, September 8
9:00 AM10:30 AM1:00 PM3:30 PM
Confirm — pay $150
Reminders onMeet link included

Get paid without chasing clients.

Send an invoice in a click. Clients pay by card or bank debit, and Lexfill reminds them every three days until it's settled.

Reminder sent · every 3 days
Reyes Immigration#INV-1042
Form I-485 preparation$1,200
USCIS filing fees$1,440
Total due$2,640
Pay invoice
CardBank

Bring your practice with you.

Lexfill fits the tools your firm already runs on — and getting your existing clients in is our job, not yours.

Already on Clio? Migrate in a click.

Connect your Clio account and your contacts and matters import straight into Lexfill — clients, case types, and details mapped for you. When the casework is done, push it back.

On a different vendor? We migrate you for free.

MyCase, PracticePanther, Smokeball, spreadsheets — wherever your client list lives today, our team moves it into Lexfill at no cost.

Privileged by default.

Your clients share their most sensitive history with Lexfill. We treat it the way you do.

SOC 2 Type II (in progress)

Independently audited controls across security, availability, and confidentiality.

Encrypted in transit and at rest

Every answer is encrypted in transit and at rest. Intake links are scoped to one client and expire after 7 days.

You stay in control

Nothing is filed automatically. Lexfill prepares; the attorney reviews, edits, and approves every record.

How we protect client data

What attorneys are saying.

Lexfill drafts the forms and documents and catches inconsistencies across them, then we review and file. That's the right way to use AI in a law firm. Plus the whole platform is genuinely built for immigration attorneys, everything in one place.
SS
Sinan SarıFounding Attorney, Yellow Law Group
5 offices5,000+ clients
I couldn't believe what Lexfill was capable of the first time I saw it. Lex is the best hire we've made — a powerful teammate that just gets things done.
RH
Ryan HafeyPartner, Hafey & Karim
I run a solo practice, and I tried just about every software on the market before choosing Lexfill. Best decision I've made for my firm. It saves me hours every week, and the Lexfill team actually picks up when I need help.
EN
Esma NacakSolo Practitioner, ENG LAW FIRM PC

Start free. Pay when you're ready.

Create an account and run your first 3 cases free — no credit card required. Every account includes the whole back office: AI intake, document intelligence, autonomous review, deadlines, and tasks. For full pricing tailored to your firm, reach out to us.

Full access
Ready for more than 3 cases? We'll put together pricing that fits your team and case volume.
Let's talk
Tailored to your team & volume
  • Everything in Start free, plus
  • Unlimited cases & team members
  • Volume pricing for your firm
  • Secure messaging & client portal
  • Side-by-side PDF form proofing
  • Client reminders & firm branding
  • SSO / SAML & audit logs
  • Dedicated onboarding & success manager
  • Priority support
  • API & case-management integrations
  • 99.9% uptime SLA

Build a practice that doesn't
follow you home.

Create your firm workspace in minutes. Your first 3 cases are free, and no credit card is needed.